体育组织
当车桥与()的相对速度较大时,减振器应当能自动加大液流通道截面积。 ["悬架","变速器","车架","离合器"]
下图表明在玻璃容器中溶液培养下幼苗的生长,且光只从右手一侧照射。在茎间可看到生长发生弯曲,这叫做:() ["感光性","向光性","趋光性","光形态建成","光周期现象"]
()的军运后付客票不填写到站 ["重点以上","特殊以上","机密以上","绝密以上"]
设8086/8088CPU时钟为5MHz,在访问外设时若在插入2个等待状态后,READY才有效,则该总线周期需要的时间为()。 ["0.8s","5s","ls","1.2"]
压缩载荷